First ever was an import 36 cal brass frame Colt Navy copy ( at about age 15) . First rimfire was an FIE Buffalo Scout 22 lr SA. Centerfire was Smith Model 10 4".
My Father-in-law gave me a XD40 with a Surefire X300 attached, the day his daughter (my then fiancee) moved out into her first apartment.
It was a really neat gesture, he handed me the case and said that it was my job to protect her now. I since traded him that XD40 back for a Glock 23 (he didn't like the Glock at all, but he loved the XD, so I "made" him trade me for it)...
My first was a little Baretta semi that broke at the breach and had a 6 round magazine. It only fired 22 shorts but it was a lot of fun for a soda can killer.